Can you help me by explaining what formulas to use and the steps to solving it without excel.

The Rollins Supply Company is considering an expansion project with cash ows as shown below. The cost of capital is 7%. Calculate the nrt present value (NPV), protability index (PI), and internal rate of return (IRR) for this project. Year Cash Flow Ch 0 - $2,100 1 $1,200 2 $1,400 3 $1,500 4 $1,700 5 $1,600 What is the project's NPV